There may be a few more surprises, but we are told that Dianna Agron (Quinn) and Heather Morris (Brittany) weren't in the script, and aren't expected to appear.

The episode, which according to sources is called "The Quarterback," began production on Friday in Los Angeles, and Lea Michele tweeted a photo of herself wearing a "Finn" necklace while shooting it. We are told that Lea doesn't appear in the episode until the final act, and she does sing.

"We're in the middle of filming [the tribute], and it's incredibly hard," Matthew Morrisontold E! News' Marc Malkin over the weekend. "We've mourned Cory, but now we're mourning Finn. So it's kind of like two people in that one person."

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How do you feel about the returns, Instincters? Will you be tuning in for Finn's goodbye?

This show is known for tugging at your heart strings, and yes I admit I have cried a few times watching it. So I have no doubt that this episode will do just that, in a tasteful and classy manner. Finn will be missed.